Mitsubishi Electric PUHZ-W50VHA Service Manual page 85

Active filter module
PUHZ-W85VHA(-BS)
PUHZ-W85VHAR1(-BS)
L1, L2
Connect to the
DCL (Reactor)
Upper
side
+
Connect to the
outdoor power
circuit board
(TABP1)
–
Connect to the outdoor
power circuit board (TABN1)
Connection and internal circuit diagram
Tester check points of Active filter module
Error condition Normal value (reference)
(–) and Io open
short
(–) and L2
open
short
P and L2
open
short
P and Io
open
short
L2 and Io
open
*
1 The symptom when the unit is in open error condition is described to determine open error by tester check.
*
2 SW2 setting
1
OCH439M
L1
(+)
(- )
1 The unit does not operate (cannot be switched ON)
less than 1"
1 The breaker operates
100 k" to 1 M"
1 The unit does not operate (cannot be switched ON) 2U9 Abnormal stop ( *
*
1
1 The breaker operates
100 k" to 1 M"
1 The unit does not operate (cannot be switched ON) 2U9 Abnormal stop ( *
*
1
1 The breaker operates
100 k" to 1 M"
1 The unit does not operate (cannot be switched ON) 2U9 Abnormal stop ( *
*
1
1 The breaker operates
100 k" to 1 M"
1 The unit does not operate (cannot be switched ON) 2U9 Abnormal stop ( *
*
1
ON
: Code "20" display
OFF
6
P
Connect to the outdoor power
circuit board (TABP2)
Connect to the outdoor
power circuit board (CNAF)
1: GND
2–1: 15 V DC
3–1: Control signal
4, 5: Not used
6–1: Control signal
DCL
L2 ACTM
P
N1
N2
Io
Symptom when the unit is in trouble
85
N1
Non-connect
Lower
side
N2
Non-connect
lo
Connect to the outdoor
power circuit board (TABN2)
+
2 )
2 )
2 )
2 )